zsync: zsync (client-side implementation of the rsync algorithm) zsync: zsync: zsync is a file transfer program. It allows you to download a file from zsync: a remote web server, where you have a copy of an older version of the zsync: file on your computer already. zsync downloads only the new parts of zsync: the file. It uses the same algorithm as rsync. zsync: zsync: The zsync web site is at http://zsync.moria.org.uk/ zsync: zsync: zsync: